Home / 278,464.08-384,280.74-151,139.82

Finding the Fourth Proportional to 278,464.08, 384,280.74 and 151,139.82

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Solution

The fourth proportional to 278,464.08, 384,280.74 and 151,139.82 is: 208,573.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,464.08 : 384,280.74 = 151,139.82 : x
  2. Step 2: Convert to fraction form
    278,464.08/384,280.74 = 151,139.82/x
  3. Step 3: Cross multiply
    278,464.08x = 384,280.74 × 151,139.82
  4. Step 4: Simplify right side
    278,464.08x = 58,080,121,873.07
  5. Step 5: Solve for x
    x = 58,080,121,873.07/278,464.08
  6. Step 6: Final answer
    x = 208,573.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.